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(No Model.)

2 Sheets-Sheet 1. V W. J. HAMILTON. MACHINE FOR PULLING DRIVEN WELL PIPE$ OUT OF THE GROUND- NO. 476,196.

Patented May 81, 1892.

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(No Model.) Y 2 Sheets-Sheet '2.

W. J. HAMILTON. MACHINE FDR PULLING DRIVEN WELLPIPES OUT OF THE GROUND.

Patented May 31, 1892.

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UNITED STATES PATENT OFFICE.

WILLIAM J. HAMILTON, OF RICHMOND, INDIANA, ASSIGNOR OF TVVO-TI-IIRDS TO JOHN W. HOEY AND FREDERICK A. WILKE, OF SAME PLACE. 4

MACHINE FOR .PULLING DRIVEN WELL-PIPES OUT OF THE GROUND.

SPECIFICATION forming part of Letters Patent No. 476,196, dated May 31, 1892.

Application filed August 25, 189] Serial No. 403,687- (No model.)

To all whom i may concern: end of the pipe passing up through the aper- Be it known that LWILLIAM J. HAMILTON, ture b in the base and between the jaws. The acitizen of the United States, and aresident of lever is then placed in its seat or socket and Richmond,in the county of Wayne and State provided with a heel or support at any suit- 5 of Indiana, have invented certain new and able point, according to the amount of leveruseful Improvementsin Machines for Pulling age to be obtained and the lever worked up Driven-VVell Pipes Out of the Ground; and I and down, like the handle of a pump. Then do declare the followingto be a full, clear, and thelever is depressed, the clamping-collar will exact description of theinvention,such as will be moved up on the jaws, causing them to [0 enable others skilled in the art to which it firmly grasp the pipe, and the whole device is appertains to make and use the same, referraised, drawing the pipe with it. When the ence being had to the accompanying drawlever is raised,the collar falls from engageings, and to the letters of reference marked ment with the jaws, permitting the machine thereon, which form a part of this specificato slip down on the pipe. When the lever is r 5 tionagain depressed, the jaws take a new hold on Figure 1 of the drawings is a side view. the pipe at a lower point, and this opera- Fig. 2 is a perspectiveview in detail of the mation is repeated. It willbe seen that by reason I chine, partlybroken away. Fig. 3 isa vertical of the spring connection of the jaws with the 7 sectional view, and Fig. 4 is a detail view in base they will accommodate themselves to 20 perspective. several different sizes of pipes, although dif- This invention has relation to devices for ferent sizes of machines may be constructed. drawing driven-well pipes; and it consistsin It will also be observed that the device instead the novel construction and combination of of being formed in four segments or jaws, parts, as hereinafter described, and pointed as shown, may be constructed of a greater or 2 5 out in the claims. less number, as may be desired.

In the accompanying drawings the letter Having described this invention, what I A designates the clamp for engagement with claim as new, and desire to secure by Letters thepipe, which is shown as of inverted frusto- Patent, isconical form made in four independent seg- 1. The herein-described device for pulling 3o ments or sections a a, &c.,- which are conpipes, comprising the base having an apernected at their lower ends to a base-piece B ture therein, the segmental tapered jaws inby means of a spring arm or strap 0. Each closing a circular aperture registering with of the segments or jaws a are adapted on their the aperture in the base, said jaws being supinner faces'to fit around and engage a porported over the base by spring-arms, an antion of the surface of thecylindrical pipe, nular collar beveled 011 its inner surface to fit forming a cylindrical aperture 0, which regsaid jaws, and a yoke-and-lever device for opisters with a central aperture through the crating said collar, substantially as specified. basepiece B. 2. The herein-described device for pulling 0 D designates an annular clamp or collar pipes, comprising an apertured base, a series 40 fitting closely around the lower portion of the of segmental jaws arranged in frusto-conical jaws and having its inner surface beveled to form having ayielding support over said base, fit closely around the upper portion of said the annular collar encircling said jaws and jaws when raised. having an inner beveled surface, and the E is a yoke having the arms 6 pivoted on yoke-and-lever device for operating said col- 5 opposite sides of the clamping-collar D and lar, substantially as specified.

united at their upper ends by the transverse In testimony whereof I affix my signaturein barf, having its ends journaled therein and presence of two witnesses.

provided with a seat or socket for an operat- 1 ing 1ever F 7 WILLIAM J. HAMILION. 5c The operation of the device is as follows: Witnesses:

The pump is removed from the pipe to be THOMAS J. FINN,

drawn and thedevice placed thereon, with the BENJ. F. HARRIS. 

